efi_loader: Rename and move CMD_BOOTEFI_HELLO_COMPILE

This is not actually a command so the name is confusing. Use
BOOTEFI_HELLO_COMPILE instead. Put it in the efi_loader directory
with the other such config options.

The link rule (for $(obj)/%_efi.so) in scripts/Makefile.lib handles
pulling in efi_crt0.o and efi_reloc.o so drop the 'extra' rules.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/configs/octeontx_83xx_defconfig b/configs/octeontx_83xx_defconfig
index 6ab8ebc..b214339 100644
--- a/configs/octeontx_83xx_defconfig
+++ b/configs/octeontx_83xx_defconfig
@@ -37,7 +37,7 @@
 CONFIG_BOARD_EARLY_INIT_R=y
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="Marvell> "
-# CONFIG_CMD_BOOTEFI_HELLO_COMPILE is not set
+# CONFIG_BOOTEFI_HELLO_COMPILE is not set
 CONFIG_CMD_MD5SUM=y
 CONFIG_MD5SUM_VERIFY=y
 CONFIG_CMD_MX_CYCLIC=y